/* =========================================
   AI Diagram Tool - Styles
   ========================================= */

:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --bg-color: #09090b;
    --panel-bg: rgba(24, 24, 27, 0.8);
    --border-color: rgba(63, 63, 70, 0.5);
    --text-primary: #fafafa;
    --text-secondary: #a1a1aa;
    --accent-bg: rgba(99, 102, 241, 0.1);
    --hover-bg: rgba(255, 255, 255, 0.05);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --success-color: #22c55e;
    --error-color: #ef4444;
}

[data-theme="light"] {
    --bg-color: #f4f4f5;
    --panel-bg: rgba(255, 255, 255, 0.9);
    --border-color: rgba(0, 0, 0, 0.1);
    --text-primary: #18181b;
    --text-secondary: #71717a;
    --accent-bg: rgba(99, 102, 241, 0.08);
    --hover-bg: rgba(0, 0, 0, 0.03);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    overflow: hidden;
}

/* Layout */
.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* Toolbar */
.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    background-color: var(--panel-bg);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 100;
}

.glass-panel {
    background-color: var(--panel-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 16px;
}

.tools-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 500;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: transparent;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.15s ease;
}

.btn:hover {
    background-color: var(--hover-bg);
    border-color: var(--primary-color);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    border-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    opacity: 0.9;
}

.btn-sm {
    padding: 5px 10px;
    font-size: 12px;
}

.btn-icon {
    padding: 6px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    color: var(--text-primary);
    background-color: var(--hover-bg);
}

.btn-icon.active {
    color: var(--primary-color);
    background-color: var(--accent-bg);
}

/* Main Content */
.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* History Sidebar */
.history-sidebar {
    width: 260px;
    background-color: var(--panel-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: width 0.2s ease;
}

.history-sidebar.collapsed {
    width: 48px;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h3 {
    font-size: 14px;
    font-weight: 600;
}

.history-sidebar.collapsed .sidebar-header h3 {
    display: none;
}

.history-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}

.history-item {
    padding: 12px;
    border-radius: 8px;
    cursor: pointer;
    margin-bottom: 4px;
    position: relative;
    transition: background-color 0.1s;
}

.history-item:hover {
    background-color: var(--hover-bg);
}

.history-item.active {
    background-color: var(--accent-bg);
    border: 1px solid var(--primary-color);
}

.history-title {
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding-right: 20px;
}

.history-time {
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.history-item .delete-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    opacity: 0;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 16px;
    padding: 2px 6px;
    border-radius: 4px;
}

.history-item:hover .delete-btn {
    opacity: 1;
}

.history-item .delete-btn:hover {
    color: var(--error-color);
    background-color: rgba(239, 68, 68, 0.1);
}

/* 历史记录操作按钮组 */
.history-actions {
    position: absolute;
    top: 8px;
    right: 8px;
    display: flex;
    gap: 4px;
    opacity: 0;
    transition: opacity 0.15s ease;
}

.history-item:hover .history-actions {
    opacity: 1;
}

.history-actions .edit-btn,
.history-actions .delete-btn {
    position: static;
    opacity: 1;
    font-size: 12px;
    padding: 2px 4px;
}

.history-actions .edit-btn {
    background: none;
    border: none;
    cursor: pointer;
    border-radius: 4px;
}

.history-actions .edit-btn:hover {
    background-color: var(--accent-bg);
}

/* 重命名输入框 */
.rename-input {
    width: 100%;
    padding: 6px 8px;
    border: 1px solid var(--primary-color);
    border-radius: 4px;
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 500;
}

.rename-input:focus {
    outline: none;
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.empty-history {
    text-align: center;
    color: var(--text-secondary);
    font-size: 13px;
    padding: 40px 20px;
}

/* Workspace */
.workspace {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Chat View */
.chat-view {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat-container {
    flex: 1;
    overflow-y: auto;
    padding: 40px;
}

.chat-welcome {
    text-align: center;
    padding: 60px 20px;
}

.welcome-icon {
    font-size: 64px;
    margin-bottom: 24px;
}

.chat-welcome h2 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 12px;
}

.chat-welcome p {
    color: var(--text-secondary);
    font-size: 15px;
    margin-bottom: 32px;
}

.quick-prompts {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.quick-prompt {
    padding: 10px 18px;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    background: transparent;
    color: var(--text-primary);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.15s;
}

.quick-prompt:hover {
    border-color: var(--primary-color);
    background-color: var(--accent-bg);
}

.chat-messages {
    max-width: 800px;
    margin: 0 auto;
}

.chat-message {
    margin-bottom: 24px;
}

.chat-message.user .message-content {
    background-color: var(--primary-color);
    color: white;
    margin-left: auto;
    max-width: 80%;
}

.chat-message.assistant .message-content {
    background-color: var(--panel-bg);
    border: 1px solid var(--border-color);
    max-width: 90%;
}

.message-content {
    padding: 14px 18px;
    border-radius: 12px;
    font-size: 14px;
    line-height: 1.6;
    width: fit-content;
}

.message-content pre {
    background-color: rgba(0, 0, 0, 0.3);
    padding: 12px;
    border-radius: 6px;
    overflow-x: auto;
    margin: 12px 0;
}

.message-content code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
}

.message-time {
    font-size: 11px;
    color: var(--text-secondary);
    display: block;
    margin-top: 6px;
}

.chat-message.user .message-time {
    text-align: right;
}

.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 20px;
}

.typing-indicator .dot {
    width: 8px;
    height: 8px;
    background-color: var(--text-secondary);
    border-radius: 50%;
    animation: bounce 1.4s infinite ease-in-out both;
}

.typing-indicator .dot:nth-child(1) {
    animation-delay: -0.32s;
}

.typing-indicator .dot:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes bounce {

    0%,
    80%,
    100% {
        transform: scale(0);
    }

    40% {
        transform: scale(1);
    }
}

/* 查看预览按钮容器 */
.preview-action-container {
    display: flex;
    justify-content: center;
    padding: 20px 0;
    margin-top: 8px;
}

.btn-preview {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid var(--primary-color);
    border-radius: 24px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(79, 70, 229, 0.15));
    color: var(--primary-color);
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-preview:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}

.btn-preview svg {
    transition: transform 0.2s ease;
}

.btn-preview:hover svg {
    transform: scale(1.1);
}

.chat-input-area {
    padding: 20px 40px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 12px;
    align-items: flex-end;
}

.chat-input-area textarea {
    flex: 1;
    padding: 14px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background-color: var(--panel-bg);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 14px;
    resize: none;
    min-height: 52px;
    max-height: 150px;
}

.chat-input-area textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Editor View */
.editor-view {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.editor-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--panel-bg);
}

.title-input {
    flex: 1;
    max-width: 300px;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: transparent;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
}

.title-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.toolbar-actions {
    margin-left: auto;
    display: flex;
    gap: 8px;
}

.editor-split {
    flex: 1;
    display: flex;
    overflow: hidden;
}

.code-panel,
.preview-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.code-panel {
    border-right: 1px solid var(--border-color);
}

.panel-header {
    padding: 12px 16px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.code-editor {
    flex: 1;
    width: 100%;
    padding: 16px;
    border: none;
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    font-size: 13px;
    line-height: 1.6;
    resize: none;
}

.code-editor:focus {
    outline: none;
}

.ai-refine-input {
    display: flex;
    gap: 8px;
    padding: 12px 16px;
    border-top: 1px solid var(--border-color);
    background-color: var(--panel-bg);
}

.ai-refine-input input {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-size: 13px;
}

.ai-refine-input input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.preview-panel {
    background-color: var(--bg-color);
}

[data-theme="light"] .preview-panel {
    background-color: #ffffff;
}

.preview-container {
    flex: 1;
    overflow: auto;
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 40px;
}

.preview-container svg {
    max-width: none;
    min-width: fit-content;
    min-height: fit-content;
    margin: auto;
}

.render-error {
    padding: 12px 16px;
    background-color: rgba(239, 68, 68, 0.1);
    border-top: 1px solid var(--error-color);
    color: var(--error-color);
    font-size: 13px;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    width: 420px;
    max-width: 90vw;
    box-shadow: var(--glass-shadow);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.input {
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--panel-bg);
    color: var(--text-primary);
    font-size: 14px;
}

.input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.full-width {
    width: 100%;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background-color: var(--text-secondary);
}

/* 图表类型选择器 */
.diagram-type-selector {
    padding: 12px 40px;
    border-bottom: 1px solid var(--border-color);
}

.type-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.type-tab {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.type-tab:hover {
    border-color: var(--primary-color);
    color: var(--text-primary);
    background-color: var(--accent-bg);
}

.type-tab.active {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
}

.type-tab .type-icon {
    font-size: 14px;
}

.type-tab.more-btn {
    border-style: dashed;
}

/* 模态框大尺寸 */
.modal.modal-lg {
    width: 680px;
    max-width: 90vw;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
}

.modal.modal-xl {
    width: 900px;
    max-width: 95vw;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
}

.modal-lg .modal-body,
.modal-xl .modal-body {
    flex: 1;
    overflow-y: auto;
}

/* 图表类型网格 */
.diagram-types-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 12px;
    padding: 8px;
}

.diagram-type-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    background: transparent;
}

.diagram-type-card:hover {
    border-color: var(--primary-color);
    background-color: var(--accent-bg);
}

.diagram-type-card.active {
    border-color: var(--primary-color);
    background-color: var(--accent-bg);
    box-shadow: 0 0 0 1px var(--primary-color);
}

.type-card-icon {
    font-size: 24px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--hover-bg);
    border-radius: 8px;
    flex-shrink: 0;
}

.type-card-info {
    flex: 1;
    min-width: 0;
}

.type-card-name {
    font-weight: 500;
    font-size: 14px;
    margin-bottom: 2px;
}

.type-card-desc {
    font-size: 12px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.example-btn {
    flex-shrink: 0;
    opacity: 0;
    transition: opacity 0.2s;
}

.diagram-type-card:hover .example-btn {
    opacity: 1;
}

/* 示例预览模态框 */
.example-modal-body {
    display: flex;
    gap: 16px;
    min-height: 400px;
}

.example-code-panel,
.example-preview-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.example-code {
    flex: 1;
    padding: 12px;
    margin: 0;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    line-height: 1.5;
    background-color: var(--panel-bg);
    color: var(--text-primary);
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

.example-preview-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background-color: var(--bg-color);
    overflow: auto;
}

[data-theme="light"] .example-preview-container {
    background-color: #ffffff;
}

/* ========================================= 
   新功能样式
   ========================================= */

/* 自动保存状态 */
.auto-save-status {
    font-size: 12px;
    margin-right: 12px;
    display: flex;
    align-items: center;
}

.status-saving {
    color: var(--text-secondary);
}

.status-saved {
    color: var(--success-color);
}

/* 预览提示 */
.preview-hint {
    font-size: 11px;
    font-weight: 400;
    color: var(--text-secondary);
    font-style: italic;
}

/* 文字编辑浮层 */
.text-edit-overlay {
    position: absolute;
    z-index: 100;
    background: var(--panel-bg);
    border: 1px solid var(--primary-color);
    border-radius: 8px;
    padding: 8px;
    box-shadow: var(--glass-shadow);
    backdrop-filter: blur(12px);
}

.text-edit-input {
    width: 200px;
    padding: 8px 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-color);
    color: var(--text-primary);
    font-size: 14px;
    margin-bottom: 8px;
}

.text-edit-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.text-edit-actions {
    display: flex;
    gap: 6px;
    justify-content: flex-end;
}

/* 编辑器 Chat 面板 */
.editor-chat-panel {
    width: 320px;
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    background: var(--panel-bg);
    flex-shrink: 0;
}

.editor-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
}

.editor-chat-messages .chat-message {
    margin-bottom: 12px;
}

.editor-chat-messages .chat-message .message-content {
    padding: 10px 12px;
    font-size: 13px;
    border-radius: 8px;
}

.editor-chat-messages .chat-message.user .message-content {
    background: var(--primary-color);
    color: white;
    margin-left: auto;
    max-width: 90%;
}

.editor-chat-messages .chat-message.assistant .message-content {
    background: var(--hover-bg);
    border: 1px solid var(--border-color);
    max-width: 90%;
}

.empty-chat {
    text-align: center;
    color: var(--text-secondary);
    font-size: 13px;
    padding: 40px 20px;
}

.editor-chat-input {
    display: flex;
    gap: 8px;
    padding: 12px;
    border-top: 1px solid var(--border-color);
}

.editor-chat-input input {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-color);
    color: var(--text-primary);
    font-size: 13px;
}

.editor-chat-input input:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* 预览容器需要相对定位以支持浮层 */
.preview-container {
    position: relative;
}